该课件主要陈述了基于内容的图象检索技术的由来，主要的处理技术和未来的发展方向。另外该课件为英文课件，有兴趣的可以下来看下！-The main statement of the courseware content-based image retrieval technology, the origin, the main treatment technologies and the future direction of development. In addition to the cours